704-16-5Relevant academic research and scientific papers
New Options of Multicomponent Condensations Leading to Functional Derivatives of 2-Pyridons
Dorovatovskii, P. V.,Dyachenko, I. V.,Dyachenko, V. D.,Khrustalev, V. N.,Nenaidenko, V. G.
, p. 1809 - 1823 (2021/12/22)
Abstract: Multicomponent condensations of activated olefins, functionalized CH-acids, and alkylating reagents, which open up the possibility of preparing derivatives of substituted 2-pyridones, have been studied. The structure of some compounds has been c
Synthesis of 2-cyanoacrylamides through Pd-catalyzed monohydration of methylenemalononitriles
Liu, Yingtian,Dang, Xinxin,He, Yu,Bai, Hudong,Chen, Xuehong,Li, Jun-Long,Fan, Junting,Jiang, Hezhong,Li, Jiahong
, p. 662 - 671 (2019/02/20)
A straightforward and efficient method has been developed for the synthesis of 2-cyanoacrylamide from 2-methylenemalononitriles through monohydration. A series of methylenemalononitriles underwent the reaction under mild and simple reaction conditions wit
Tetrahydro benzothiophene derivative and application thereof to preparation of glycogen synthase kinase 3 beta inhibitor
-
Paragraph 0044; 0045; 0046, (2017/10/25)
The invention discloses a tetrahydro benzothiophene derivative and the application thereof to the preparation of a glycogen synthase kinase 3 beta inhibitor. The tetrahydro benzothiophene derivative, pharmaceutically acceptable salt, optical active body or racemate thereof has a chemical structure as shown in a formula I. Experiments show that the compound has good GSK-3 beta inhibitory activity. In addition, the invention further provides a method for preparing a tetrahydro benzothiophene compound. The method is short in synthesis route, simple in preparation process and easy to operate, and can meet the requirements of large-scale industrial production.
Homogeneous and stereoselective copper(II)-catalyzed monohydration of methylenemalononitriles to 2-cyanoacrylamides
Xin, Xiaoqing,Xiang, Dexuan,Yang, Jiming,Zhang, Qian,Zhou, Fenguo,Dong, Dewen
, p. 11956 - 11961 (2014/01/06)
A facile and efficient route for the homogeneous and highly stereoselective monohydration of substituted methylenemalononitriles to (E)-2-cyanoacrylamides catalyzed by copper(II) acetate monohydrate in acetic acid containing 2% water is described, and a mechanism is proposed. The protocol has proved to be suitable for the monohydration of dicyanobenzenes and 2-substituted malononitriles.
Synthesis of some 3-substituted amino-4,5-tetramethylene thieno[2,3-d][ 1,2,3]-triazin-4(3H)-ones as potential antimicrobial agents
Saravanan, Janardhanan,Mohan, Shamanna,Roy, Jay Jyoti
experimental part, p. 4365 - 4369 (2010/10/02)
A series of 3-Substituted amino-4,5-tetramethylene thieno[2,3-d] [1,2,3]-triazine-4(3H)-ones have been synthesized and characterized by UV,IR, 1H NMR, elemental and mass spectral analysis. The title compounds were evaluated for their antimicrobial activit
PROCESS FOR PREPARING CYCLOHEXANEDIACETIC ACID MONOAMIDE
-
Page/Page column 6, (2010/02/14)
A new process is described for synthesising cyclohexanediacetic acid monoamide, a key compound in the synthesis of grabapentin precursors. The process of the invention is characterised by reacting cyclohexanone with cynoacetamide and immediately after, with a suitable malonic acid ester. A new intermediate (5-cyano-2,4-dioxo-3-azaspiro[5,5]undecane-1-carboxylic acid ester) is obtained which is convertible, under mild reaction conditions, into cyclohexanediacetic acid monoamide.
Synthesis of Cyclobutenes by the Novel Photochemical Ring Contraction of 4-Substituted 2-Amino-3,5-dicyao-6-phenyl-4H-pyrans
Armesto, Diego,Horspool, William M.,Martin, Nazario,Ramos, Ana,Seoane, Carlos
, p. 3069 - 3072 (2007/10/02)
4-Substituted 2-amino-3,5-dicyano-6-phenyl-4H-pyrans undergo a novel photochemical ring contraction to cyclobutenes from the triplet state.For example, irradiation of a solution of 2-amino-3,5-dicyano-6-phenyl-4H-pyran-4-spirocyclopentane (9a) in methylen
A Novel Photochemical Ring Contraction of 4H-Pyrans. A New Route to Selectively Substituted Cyclobutenes
Armesto, Diego,Horspool, William M.,Martin, Nazario,Ramos, Ana,Seoane, Carlos
, p. 1231 - 1232 (2007/10/02)
The novel photochemical ring contraction of some 4H-pyrans to cyclobutenes is described.
